In all fairness, unless teams coordinate, what often tends to happen is people come into the office haphazardly based on what they're doing and whether they have a reason to want to stay home that day. And then, once in the office, none of the other people they want to see are there.

I know this has happened with me and others I know. I wouldn't mind going into the office a day or two per week if it were useful but between travel and people working from home and people who aren't in the same office, there won't be a lot of people I work with circulating around if I do. So I don't bother.

But we're a pretty remote friendly company in general--although the degree to which people who have an office come in varies by team.